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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2111
Location: Oklahoma
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 Posted: May 23, 2024 08:00 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Quartz (variety chalcedony) |
| Locality: | | San Rafael District, Emery County, Utah, USA |  |
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| Dimensions: | 7.2 x 4.8 x 3.0 cm |
| Description: |
| Reddish-orange chalcedony, the top surface covered by small bubbly growths averaging 2-3 mm, known locally as “caviar or roe agate.” |
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3295 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2111
Location: Oklahoma
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| Posted: May 24, 2024 10:46 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Quartz |
| Locality: | | Empire Mine, Patagonia Mountains, Washington Camp-Duquesne District, Santa Cruz County, Arizona, USA | |
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| Dimensions: | 7.1 x 5.4 x 4.0 cm |
| Description: |
| Druzy quartz crystals lining a small cavity in white quartz. Collected in February 1994. |
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3256 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2111
Location: Oklahoma
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| Posted: May 27, 2024 08:06 Post subject: Re: Collection of Michael Shaw - Fluorite |
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| Mineral: | Fluorite |
| Locality: | | El Filo vein, Santa Librada, Municipio Mapimí, Durango, Mexico | |
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| Dimensions: | 7.3 x 5.1 x 2.7 cm |
| Description: |
| An aggregate of cubic purple fluorite crystals to 2.2 cm on edge. The crystal faces have a stepped growth pattern and many crystals have darker purple edges. |
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3157 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2111
Location: Oklahoma
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| Posted: May 28, 2024 09:04 Post subject: Re: Collection of Michael Shaw - Quartz |
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| Mineral: | Quartz |
| Locality: | | Toufassmame (Izizauen), Alnif Commune, Tinghir Province, Drâa-Tafilalet Region, Morocco | |
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| Dimensions: | 7.0 x 6.4 x 5.9 cm |
| Description: |
| Quartz crystals tinted reddish brown by hematite. The cores of the crystals are colorless quartz and the outside is overlain by a thin layer of transparent quartz. From the 2015 find. |
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3064 Time(s) |
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| Mineral: | Quartz |
| Locality: | | Toufassmame (Izizauen), Alnif Commune, Tinghir Province, Drâa-Tafilalet Region, Morocco | |
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| Dimensions: | 7.0 x 6.4 x 5.9 cm |
| Description: |
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| Viewed: |
3069 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2111
Location: Oklahoma
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| Posted: May 29, 2024 08:21 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Quartz (variety amethyst) |
| Locality: | | La Manche, Placentia Bay, Newfoundland (Island), Newfoundland and Labrador, Canada | |
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| Description: |
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| Viewed: |
3014 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2111
Location: Oklahoma
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| Posted: Jun 02, 2024 08:51 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Heulandite on Thompsonite |
| Locality: | | Aurangabad District, Maharashtra, India | |
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| Dimensions: | 6.6 x 4.3 x 2.9 cm |
| Description: |
| Classic coffin-shaped crystals of colorless heulandite to 1.3 cm covering pale orange spheres of thompsonite. According to Sami Makki, these were collected in 2023 during the excavation of a water well at Pahur. |
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2842 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2111
Location: Oklahoma
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| Posted: Jun 04, 2024 08:39 Post subject: Re: Collection of Michael Shaw - Malachite |
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| Mineral: | Malachite |
| Locality: | | Kolwezi District, Lualaba, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) | |
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| Dimensions: | 7.1 x 2.4 x 1.2 cm |
| Description: |
| A parallel growth of stalactitic sparkling green malachite. Ex. Rock Currier Collection #6525. |
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| Viewed: |
2726 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2111
Location: Oklahoma
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| Posted: Jun 05, 2024 08:45 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Spinel |
| Locality: | | Mahenge Mountains, Morogoro Region, Tanzania | |
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| Dimensions: | 2.5 x 2.0 cm |
| Description: |
| Reddish-purple octahedral spinel crystals partially embedded in a white marble matrix. |
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| Viewed: |
2628 Time(s) |
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| Mineral: | Spinel |
| Locality: | | Mahenge Mountains, Morogoro Region, Tanzania | |
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| Dimensions: | 2.5 x 2.0 cm |
| Description: |
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| Viewed: |
2589 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2111
Location: Oklahoma
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| Posted: Jun 07, 2024 09:00 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Mesolite |
| Locality: | | Pashan Quarries, Pashan, Pune District (Poonah District), Maharashtra, India | |
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| Dimensions: | 7.0 x 4.5 x 2.5 cm |
| Description: |
| Radiating acicular mesolite presenting as compact white crystals at the base grading to colorless transparent crystals at the terminations. Ex. Rustam Kothavala. |
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| Viewed: |
2444 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2111
Location: Oklahoma
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| Posted: Jun 09, 2024 08:26 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Azurite |
| Locality: | | Mikheevskoe deposit, Kartalinsky District, Chelyabinsk Oblast, Ural Federal District, Russia | |
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| Dimensions: | 2.3 x 2.2 cm |
| Description: |
| Half of an azurite nodule containing a star-shaped cavity lined with azurite crystals. |
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| Viewed: |
2323 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2111
Location: Oklahoma
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| Posted: Jun 11, 2024 13:17 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Albite |
| Locality: | | California State Gem Mine (Benitoite Gem Mine), San Benito River headwaters area, Santa Rita Peak, New Idria District, San Benito County, California, USA | |
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| Dimensions: | 3.0 x 2.5 cm |
| Description: |
| One of the less commonly found minerals at a location most known for benitoite and neptunite. |
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| Viewed: |
2194 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2111
Location: Oklahoma
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| Posted: Jun 12, 2024 09:50 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Vanadinite |
| Locality: | | Potosí Mine, Santo Domingo (Francisco Portillo), Santa Eulalia District, Municipio Aquiles Serdán, Chihuahua, Mexico | |
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| Dimensions: | 2.3 x 1.5 cm |
| Description: |
| Chocolate brown vanadinite crystals associated with minor colorless calcite from Cock's Orebody. |
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| Viewed: |
2101 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2111
Location: Oklahoma
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| Posted: Jun 16, 2024 08:27 Post subject: Re: Collection of Michael Shaw - Fluorite |
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| Mineral: | Fluorite |
| Locality: | | San Francisco del Oro Mine, San Francisco del Oro, Municipio San Francisco del Oro, Chihuahua, Mexico | |
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| Dimensions: | 8.0 x 7.2 x 2.7 cm |
| Description: |
| A group of translucent pale green fluorite octahedrons to 1.8 cm with faint purple hues and matte-textured faces. |
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| Viewed: |
1855 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2111
Location: Oklahoma
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| Posted: Jun 20, 2024 15:09 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Galena |
| Locality: | | Kenora Mine, Picher Field, Cardin, Tri-State District, Ottawa County, Oklahoma, USA | |
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| Dimensions: | 4.9 x 3.7 x 3.5 cm |
| Description: |
| A bright metallic gray galena crystal with well-developed cuboctahedral fortification overgrowths implanted on a shard of light gray chert. |
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| Viewed: |
1669 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2111
Location: Oklahoma
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| Posted: Jun 23, 2024 09:02 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Fluorite |
| Locality: | | Erongo Mountain, Usakos, Erongo Region, Namibia | |
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| Dimensions: | 2.8 x 2.0 cm |
| Description: |
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| Viewed: |
1523 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2111
Location: Oklahoma
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| Posted: Jun 26, 2024 08:47 Post subject: Re: Collection of Michael Shaw |
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The location for the following specimen gets its name from Thomas Leiper (1745-1825), who owned several properties which were quarried for feldspar. Some of the buildings at nearby Swarthmore College used stone from the Leiper's Quarry.
| Mineral: | Microcline |
| Locality: | | Leiper's Quarry, Leiperville, Delaware County, Pennsylvania, USA | |
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| Dimensions: | 7.2 x 3.2 x 2.2 cm |
| Description: |
| A rectangular block of brown perthitic microcline with intergrowths of albite visible as light-colored lines coursing through the K feldspar groundmass. |
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| Viewed: |
1332 Time(s) |
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| Mineral: | _Old label that accompanied the piece. |
| Description: |
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| Viewed: |
1324 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2111
Location: Oklahoma
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| Posted: Jun 28, 2024 07:00 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Natrolite |
| Locality: | | Marrawah quarries, Cape Grim, Circular Head Council, Tasmania, Australia | |
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| Dimensions: | 6.1 x 4.6 x 2.1 cm |
| Description: |
| Intergrown radial sprays of glassy white natrolite prisms from the well-known Tasmanian zeolite locality. |
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| Viewed: |
1163 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2111
Location: Oklahoma
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| Posted: Jul 01, 2024 10:33 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Calcite |
| Locality: | | Grabiszyce Górne, Leśna, Lubań, Lower Silesian Voivodeship, Poland | |
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| Dimensions: | 4.0 x 3.8 cm |
| Description: |
Bright orange scalenohedral calcite crystals forming radial sprays on a
brecciated basalt matrix. From the find in 2015. |
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| Viewed: |
848 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2111
Location: Oklahoma
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| Posted: Jul 04, 2024 10:23 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Turquoise |
| Locality: | | Mineral Park Mine, Ithaca Peak, Cerbat Mountains, Kingman, Mineral Park District, Mohave County, Arizona, USA | |
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| Dimensions: | 10.8 x 7.5 x 6.0 cm |
| Description: |
| Bright blue-green veins of turquoise in a light tan trachyte matrix. |
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| Viewed: |
674 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2111
Location: Oklahoma
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| Posted: Jul 06, 2024 07:40 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Elbaite |
| Locality: | | Braldu Valley, Shigar District, Gilgit-Baltistan (Northern Areas), Pakistan | |
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| Dimensions: | 6.6 x 1.5 x 1.4 cm |
| Description: |
| Doubly-terminated elbaite crystals in sub-parallel growth. The crystals are pale pink with very subtle green tones. |
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| Viewed: |
570 Time(s) |
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